Every group has around 2-4 countries that fit into it. The hint can be what continent that country is on, the first letter of the country's name, the exact number for whatever static it is talking about, or there can be no hint.
For the question that asks about the median land area, if we took all the countries land area and then found the median of all of them, what would be the median and what countries are around that
1. Sorry that's usually how I spell it in the countries of the world quiz i will change it right now 2. When I first did this group it was "most guessed countries that do not have a land border but I changed it because it was too long so I will change that. 3. It is the countries that have the same land area as the median of all the countries about. I understand it doesn't really explain that so I will add a part in the description that explains it.